ETFE Membrane Facade 이중 외피 파사드 by Petr Franta is a highly esteemed winner of the very prestigious 2022 A' Design Award 동상 in 건축, 건물 및 구조물 디자인 Competition Category.
동건축· 2022
ETFE Membrane Facade 이중 외피 파사드
by Petr Franta
Client: Ctu
A' Design Award 동상 Winner in 건축 Category
Verified Award Winner
Verify Award Status for #134989The Design
About ETFE Membrane Facade 이중 외피 파사드
ETFE 멤브레인 파사드는 연구 및 교육 시설을 위해 설계된 이중 외피 파사드이다. 외부 외피는 폭 3미터, 길이 최대 62미터에 이르는 투명한 에틸렌 테트라플루오로에틸렌 쿠션을 용접하여 형성하였으며, 일정한 공기압을 유지한 상태로 알루미늄 클램프를 이용해 보조 강구조물에 대각선 방향으로 설치되었다. 파사드 공기층은 태양열 집열기 역할을 하며, 따뜻해진 공기가 환기 설비로 유입되어 에너지 사용량을 최대 30퍼센트까지 절감한다. 멤브레인은 빗물로 자연 세척되며, 도로 교통 소음에 대한 차음 성능도 더해준다.
The Recognition
About the A' Design Award 동상
ETFE Membrane Facade 이중 외피 파사드, 이 작품은 A' Design Award 동상 수상작으로, 창의성, 독창성, 영민함으로 돋보이는 뛰어난 디자인에 수여되는 높은 권위의 인정입니다. 동상 수상작은 충분히 숙련되고 인상적으로 창의적인 작품으로, 디자이너의 폭넓은 경험, 상상력, 기지를 입증합니다. ETFE Membrane Facade 이중 외피 파사드, 이 작품은 높이 평가받고 감탄과 사랑을 받는 사물로서 두드러지게 전문적이고 혁신적일 것으로 기대됩니다. 이 동상 수상 디자인은 예술, 과학, 디자인, 기술의 모범 사례를 담고 있으며 세부에 대한 주의로 훌륭합니다. ETFE Membrane Facade 이중 외피 파사드, 이 작품은 필요를 훌륭하게 충족하고 욕망에 닿으며 감정을 매료하고 호기심을 불러일으킵니다.
Behind the Design
Press Kit
Credits, team members and technical details provided by the designer.
- Unique Properties
- Applying Double Skin Facade with ETFE Ethylen Tetrafluor Ethylen transparent membrane assembly for energy saving up to 30 percent. Acting as solar collector with recuperation of hot air on the top floors in winter season.
Additional acoustic protection on busy traffic streetscape.
Aesthetics, added value as large span between structural members.
Self cleaning exterior of the facade ETFE membrane with additive chemical component rejecting dirt as automatic cleaning of the facade with rain water. - Dimensions & Packaging
- Pneumatic ETFE membrane cushions are 3 m wide and up to 62 m long, installed diagonally and kept under constant air pressure 300 Pa.
Cushions are anchored on secondary structural steel system with aluminium extrusion clamps structurally designed for wind load.
Acoustical properties in combination with triple glazing system 47 dB adds 10 dB to 57 dB in composite calculation.
Area of ETFE membrane facade is divided in two parts 1294 m2 and 570 m2.
Height of facade 20 m. Length of facade is 68 and 30 m. - Tags
- ETFE, Ethylen TetraFluor Ethylen membrane, Double skin pneumatic facade,
- Production Technology
- 3 m wide ETFE Ethylen Tetrafluor Ethylen cushions in south and west facade with seam in aluminium profiles on the secondary steel structure are welded cushions and kept under constant air pressure 300 Pa.
Weight is 1% of glass installation of outer skin.
Recuperation of hot air from facade as solar collector, energy saving up to 30%.
Self cleaning exterior ETFE membrane with additive chemical component rejecting dirt cleaning of the facade with rain water.
ETFE 50-years lifespan of the material. - Design Challenge
- Turning of the corner of diagonally placed pneumatic cushion of ETFE membrane detail in double skin facade.
Special aluminium extrusion detail was developed (with live size models) especially for this project to allow the twisting diagonal clamp with 1000 mm radius, placed on secondary steel tubing. We had to comply with European standards DIN different for aluminium and steel. Large mock-ups, samples and models were part of the design process to make sure that the membrane does not wrinkle. - Research
- Design research was very complex with scientists, structure engineers in applications ETFE membrane around the world (London, Munich, New York) - design datas with manufacturers, designers.
We searched design and structural properties of Ethylen TetraFluor Ethylen transparent membrane facades for building types use, duration in life span, wind load on pneumatic cushions, aluminium clamps detailing, secondary steel structure detailing, transparency properties, weight, width versus span dimensions. - Inspiration
- Presentation of 8 x 6 m sample of ETFE membrane cushion with pneumatic equipment for Allianz Arena in Munich by Herzog De Meuron Architects. It was used for football stadium, in England for museum in Leicester by Nicolas Grimshaw and other non transparent use. After researching those study cases around the world, later came to me the idea to use transparent double skin membrane for office type building for scientists, using transparent film membrane in double skin facade instead of glass.
- Project Duration
- Project design started in 2008 in Prague with presentation to Technical university scientists committee.
Realized in years from 2015 to 2017 on Czech Technical University in Prague campus for Czech Institute of Informatics, Robotics and Cybernetics of the CTU in Prague. - Operation Flow
- Applying double skin facade with ETFE membrane assembly for energy saving with recuperation of hot air on the top floors, saves 30 percent of an energy consumption.
From double facade acting as solar collector hot outside air is sucked into the ventilation HVAC units on each floor from two places - from south facade for the winter and transition period and from the north facade in the summer. (Solar collector - double facade between the glass facade and the outer facade of the ETFE facing south). - Patents
- Design of pneumatic cushions fasade with ETFE Ethylen TetraFluor Ethylen trademark Taiyo Europe.
- Team Members
- Architect: Petr Franta
Architect: Stepan Sekera
Architect: Petr Sobotka - Image Credits
- Image #1 Photographer Jiří Ryzsavy
Image #2 Photographer Jiří Ryzsavy
Image #3 Photographer Jiří Ryzsavy
Image #4 Photographer Jiří Ryzsavy
Image #5 Photographer Jiří Ryzsavy
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